What are the common causes of urinary tract infections?

The common causes of urinary tract infection are bacterial infection, decreased immunity, urinary tract obstruction, etc.

1. Bacterial infection

patients infected with Escherichia coli, Klebsiella bacteria and other bacteria, bacteria can reproduce in the urinary tract, leading to local infection inflammatory lesions, causing urinary tract infection.

2. Immunity decline

Long-term excessive use of antibiotics and immunosuppressants, may cause the patient's immunity to decline, unable to resist the invasion of pathogenic microorganisms, leading to urinary tract infection.

3. Urinary tract obstruction

patients appear urinary tract obstruction, urinary tract bacteria can not be washed in time, a large number of bacteria in local reproduction, may cause urinary tract infection.